CN113247380B - Method and device for heat sealing of bag opening of large-size plastic packaging bag - Google Patents
Method and device for heat sealing of bag opening of large-size plastic packaging bag Download PDFInfo
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- CN113247380B CN113247380B CN202110465411.8A CN202110465411A CN113247380B CN 113247380 B CN113247380 B CN 113247380B CN 202110465411 A CN202110465411 A CN 202110465411A CN 113247380 B CN113247380 B CN 113247380B
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- sealing
- heat conduction
- conduction material
- mounting seat
- heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
- B65B51/146—Closing bags
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Package Closures (AREA)
Abstract
The invention discloses a method and a device for heat sealing of a bag opening of a large-size plastic packaging bag, and the method and the device comprise a sealing knife mounting seat, a sealing knife, a bearing plate mounting seat, a bearing plate, a heat conduction material shell, a heat conduction material and a heating rod. According to the invention, the sealing knife of the heat sealing device is heated in a manner that the heating rod heats the heat conduction material to raise the temperature for heat transfer, so that all parts of the sealing knife are uniformly heated, no temperature difference is generated at all parts of the whole section of the sealing knife, the problem that the heat sealing cannot be carried out or a lap is scalded is avoided, and the uniform and effective hot sealing of the packaging bag is realized.
Description
Technical Field
The invention relates to the technical field of packaging, in particular to a method and a device for heat-sealing a bag opening of a large-size plastic packaging bag.
Background
The common plastic packaging bag heat-sealing device can only meet the requirement of heat sealing with the sealing length not exceeding 300 mm. When the mouth of an ultra-large size plastic packaging bag which is filled with a large amount of materials and has a sealing length of more than 1000 mm needs to be subjected to heat sealing, the conventional heat sealing method and device cannot complete effective heat sealing at one time. If a common heat sealing device is used for heat sealing the mouth of a large-size plastic bag in a segmented manner, the sealing cannot be guaranteed to be flat, effective and gapless due to multiple operations, and the requirement for high-standard sealing cannot be met. If the heat-sealing knife is lengthened on the basis of the existing heat-sealing method and device, when the size of the heat-sealing knife is lengthened to a certain degree, the temperature at each position of the sealing knife is difficult to be ensured to be uniform. The uneven temperature of the knife edge can cause the condition that one part of the seal fails or the seal is scalded, and the effective sealing can not be realized.
Disclosure of Invention
Aiming at the problems in the background art, the invention provides a method and a device for heat-sealing a bag opening of a large-size plastic packaging bag.
In order to achieve the purpose, the invention adopts the following technical scheme: the large-size plastic packaging bag opening heat sealing method and device comprises a sealing knife mounting seat, a sealing knife, an adapting plate mounting seat, an adapting plate, a heat conduction material shell, a heat conduction material and a heating rod, wherein the heat conduction material shell is fixedly mounted on the sealing knife mounting seat, the outer side surface of the heat conduction material shell is closed with an inner side surface opening, the heat conduction material shell is filled with a heat conduction material, the heating rod is embedded in the heat conduction material, the back of the sealing knife is embedded and fixed on the heat conduction material through the inner side surface opening of the heat conduction material shell, a cutting edge end faces outwards, the adapting plate is mounted on the opposite side of a sealing cutting edge opening through the adapting plate mounting seat, and the sealing knife mounting seat and the adapting plate mounting seat are slidably mounted on the same horizontal plane.
As preferred, the heat conduction material is the plasticity material, and the heating rod is the arc setting, and the heating rod middle part is close to relatively and seals the sword and both ends are kept away from relatively.
Preferably, the heating rod is an iron-chromium-aluminum alloy electric furnace wire, the minimum distance between the middle part of the heating rod and the sealing cutter is 4 mm, and the minimum distance between the two ends of the heating rod and the sealing cutter is 6 mm.
As preferred, two parts about the heat conduction material shell can the split is divided into, seals the form that the sword was arranged in parallel from top to bottom and is provided with two, and the tip of two sword of sealing is all buried in the heat conduction material.
Preferably, the sealing device further comprises a temperature control switch and a control module, wherein the temperature control switch is used for detecting the real-time temperature of the sealing knife, the output signal of the temperature control switch is connected to the control module, and the signal output of the control module is connected to the sealing cylinder and the bearing cylinder.
Preferably, the bearing plate is mounted on the front end of the bearing plate mounting seat through two L-shaped clamping pieces.
Preferably, the outer sides of the two ends of the sealing knife mounting seat and the bearing plate mounting seat are both provided with slide rails, and the two ends of the sealing knife mounting seat and the bearing plate mounting seat are respectively slidably mounted on the slide rails through slide blocks.
Preferably, the sealing knife mounting seat and the bearing plate mounting seat are driven to slide through a sealing cylinder and a bearing cylinder respectively, the telescopic end of the sealing cylinder is connected with the sealing knife mounting seat through a first connecting block, and the telescopic end of the bearing cylinder is connected with the bearing plate mounting seat through a second connecting block.
Preferably, the first connecting block and the second connecting block are U-shaped, the first connecting block clamping sleeve is arranged on the heat conduction material shell and locked through a bolt, the second connecting block clamping sleeve is arranged on the bearing plate mounting seat and locked through a bolt, and the sealing knife mounting seat, the sealing knife and the heat conduction material shell are connected and locked through vertically arranged connecting bolts.
Preferably, the receiving plate is made of asbestos.
the beneficial effects of the invention are:
the invention provides a method and a device for heat-sealing a bag opening of a large-size plastic packaging bag, wherein a sealing knife of a heat-sealing device is heated in a mode of heating a heat conduction material by a heating rod to raise the temperature for heat transfer, so that all parts of the sealing knife are uniformly heated, the temperature difference of all parts of the whole section of the sealing knife is ensured, the problem that the heat-sealing cannot be carried out or a lap opening is scalded is avoided, and the uniform and effective heat-sealing of the packaging bag is realized.
Drawings
FIG. 1 is a perspective view of the overall construction of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic illustration of the present invention in operation;
FIG. 4 is a schematic view of the arrangement of the heating rod, the heat conductive material and the receiving plate of the present invention;
fig. 5 is a schematic flow chart of the operation of the present invention.
FIG. 6 is a schematic view of the present invention with two sealing knives installed;
in the figure, 1-sealing knife mounting seat, 2-sealing knife, 3-sliding block, 4-sliding rail, 5-sealing cylinder, 6-bearing plate mounting seat, 7-bearing plate, 8-first connecting block, 9-bearing cylinder, 10-second connecting block, 11-clamping piece, 12-heat conducting material shell, 13-heat conducting material, 14-heating rod, 15-connecting bolt and 16-plastic bag to be sealed.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in fig. 1 to 4, the method and device for heat-sealing the mouth of the large-size plastic packaging bag comprise a sealing knife mounting seat 1, a sealing knife 2, a receiving plate mounting seat 6, a receiving plate 7, a heat conduction material shell 12, a heat conduction material 13 and a heating rod 14, wherein the heat conduction material shell 12 is fixedly mounted on the sealing knife mounting seat 1, an inner side opening is sealed on the outer side of the heat conduction material shell 12, the heat conduction material 13 is filled in the heat conduction material shell 12, the heating rod 14 is embedded in the heat conduction material 13, the back of the sealing knife 2 is embedded and fixed on the heat conduction material 13 through the inner side opening of the heat conduction material shell 12, and the cutting edge end faces outwards. Heat conduction material 13 heats up through heating rod 14, will seal 2 intensifications of sword through carrying out the heat transfer mode, makes the longer 2 each sections of sword that seal of size everywhere can both be heated evenly, and the difference in temperature is less, and the guarantee seals the quality. The opposite side of the cutting edge of the sealing knife 2 is provided with a bearing plate 7 through a bearing plate mounting seat 6, and the bearing plate is used for bearing the sealing knife 2 and stably extruding and sealing the bag opening. Further, heat conduction material 13 is the plasticity material, and heating rod 14 is the iron chromium aluminum alloy electric stove silk of easy crooked preparation, is the arc setting with heating rod 14, and heating rod 14 middle part is close to relatively and seals sword 2 and both ends keep away from relatively. The minimum distance between the middle part of the heating rod 14 and the sealing cutter 2 is 4 mm, and the minimum distance between the two ends of the heating rod 14 and the sealing cutter 2 is 6 mm. Thereby further ensuring that the whole section of the sealing knife 2 has almost no temperature difference and ensuring the heat sealing quality. The bearing plate 7 is made of asbestos materials, is rich in elasticity and good in heat resistance, and guarantees the sealing forming quality. Moreover, the bearing plate 7 is mounted at the front end of the bearing plate mounting seat 6 through two L-shaped clamping pieces 11, so that the bearing plate 7 can be stably clamped, the front end of the bearing plate 7 is effectively limited, and the bearing plate 7 is convenient to detach and replace while the bearing plate 7 is stably mounted.
Furthermore, the outer sides of the two ends of the sealing knife mounting seat 1 and the bearing plate mounting seat 6 are both provided with a sliding rail 4, and the two ends of the sealing knife mounting seat 1 and the bearing plate mounting seat 6 are respectively slidably mounted on the sliding rail 4 through a sliding block 3. Seal sword mount pad 1 and accept board mount pad 6 and slide through sealing cylinder 5 and accepting cylinder 9 drive respectively, seal the flexible end of cylinder 5 and be connected with seal sword mount pad 1 through first connecting block 8, accept the flexible end of cylinder 9 and be connected with accepting board mount pad 6 through second connecting block 10. The sealing cutter 2 and the bearing plate 7 slide under the driving of the sealing cylinder 5 and the bearing cylinder 9, and then the sealing work is stably carried out.
The invention also comprises a temperature control switch and a control module, wherein the temperature control switch is used for detecting the real-time temperature of the sealing cutter 2, the output signal of the temperature control switch is connected to the control module, and the signal output of the control module is connected to the sealing cylinder 5 and the bearing cylinder 9. The working process of the invention is as shown in fig. 5, the sealing temperature and the sealing time are preset, the sealing knife 2 is heated by the heating rod 14, and the temperature of the sealing knife 2 is detected in real time by the temperature control switch. Simultaneously, the plastic packaging bag to be sealed is placed in place, when the temperature of the sealing knife 2 reaches a set temperature, a temperature control switch signal is sent to the control module, the control module sends a signal to control the sealing air cylinder 5 and the bearing air cylinder 9 to act, the sealing knife 2 and the bearing plate 7 are driven to seal, and after the sealing time reaches a set value, the sealing air cylinder 5 and the bearing air cylinder 9 drive the sealing knife 2 and the bearing plate 7 to recover and reset to complete the heat sealing of the plastic bag. In particular, the heat conductive material shell 12 can be separated into an upper part and a lower part, which facilitates the replacement and adjustment of the heat conductive material 13 and the heating rod 14. Moreover, as shown in fig. 6, when the sealing length of the plastic bag is 1700 mm and two sealing operations are required, two sealing knives 2 are mounted on the heat conductive material housing 12 in parallel, and the backs of the two sealing knives 2 are embedded in the heat conductive material 13. Similarly, the heating rod 14 heats the heat conduction material 13, and the two sealing knives 2 are heated and heated at the same time, after the temperature reaches a set value, the two sealing knives 2 and the bearing plate 7 are driven by the sealing cylinder 5 and the bearing cylinder 9 to simultaneously perform two sealing operations for hot sealing, the hot sealing time is reset under the driving of the sealing cylinder 5 and the bearing cylinder 9, and the two sealing operations are completed completely. Wherein, first connecting block 8 and second connecting block 10 all are "U" type, and 8 clamping sleeves of first connecting block set up on heat conduction material shell 12 and through bolt locking, and 10 clamping sleeves of second connecting block set up on accepting board mount pad 6 and through bolt locking, seal sword mount pad 1, seal sword 2 and heat conduction material shell 12 and connect the locking through vertically arranged connecting bolt 15. Through 8 collet heat conduction material shell 12 one sides of first connecting block, through the opposite side of connecting bolt 15 fixed heat conduction material shell 12, can seal sword 2, heat conduction material shell 12 and the firm locking connection of heat conduction material 13 as an organic whole, ensure to seal fashioned quality.
In conclusion, the plastic bag heat sealing machine can complete heat sealing of plastic bags with sealing lengths of more than 300 mm and larger at one time, and is wider in adaptability and concise in operation. Meanwhile, the sealing knife is heated in a mode that the heating rod heats the heat conduction material to raise the temperature for heat transfer, so that all parts of the sealing knife are uniformly heated, no temperature difference is generated at all parts of the whole section of sealing knife, the problem that a heat seal cannot be carried out or a lap is scalded is avoided, and the packaging bag is uniformly and effectively scalded. In addition, the invention can conveniently adjust and replace the length of the sealing knife, the number of the sealing knives, the size of the heating rod and the filling of the heat conduction material by disassembling the heat conduction material shell 12, thereby realizing the adjustment and control of the number of the seals, the length of the seals, the heating power of the sealing knives, the temperature uniformity of the sealing knives and the heat sealing temperature interval. And the control module can linearly set the temperature of the sealing knife and the heat sealing time. Therefore, plastic bags made of different materials can be adjusted in a personalized manner according to different use environments, and the method is suitable for use in various scenes.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a jumbo size plastic packaging bag sack sealing device which characterized in that: the sealing knife comprises a sealing knife mounting seat (1), a sealing knife (2), a bearing plate mounting seat (6), a bearing plate (7), a heat conduction material shell (12), a heat conduction material (13) and a heating rod (14), wherein the heat conduction material shell (12) is fixedly mounted on the sealing knife mounting seat (1), the outer side surface of the heat conduction material shell (12) is sealed with an inner side surface opening, the heat conduction material shell (12) is filled with the heat conduction material (13), the heating rod (14) is embedded in the heat conduction material (13), the back of the sealing knife (2) is embedded and fixed on the heat conduction material (13) through the inner side surface opening of the heat conduction material shell (12), the cutting edge end faces outwards, the bearing plate (7) is mounted on the opposite side surfaces of the cutting edge of the sealing knife (2) through the bearing plate mounting seat (6), and the sealing knife mounting seat (1) and the bearing plate mounting seat (6) are slidably mounted on the same horizontal plane; the heat conduction material (13) is made of plastic materials, the heating rod (14) is arranged in an arc shape, the middle part of the heating rod (14) is relatively close to the sealing knife (2), and the two ends of the heating rod are relatively far away; the heating rod (14) is an iron-chromium-aluminum alloy electric furnace wire, the minimum distance between the middle part of the heating rod (14) and the sealing cutter (2) is 4 mm, and the minimum distance between the two ends of the heating rod (14) and the sealing cutter (2) is 6 mm; the heat conduction material shell (12) can be split into an upper part and a lower part, two sealing knives (2) are arranged in an up-down parallel arrangement mode, and the end parts of the two sealing knives (2) are embedded into the heat conduction material (13).
2. The apparatus for heat-sealing the mouth of a large-sized plastic packaging bag according to claim 1, wherein: still include temperature detect switch and control module, temperature detect switch is used for detecting the real-time temperature of sword (2) of sealing, and temperature detect switch output signal connects to control module, and control module signal output connects to and seals cylinder (5) and accepts cylinder (9).
3. The apparatus for heat-sealing the mouth of a large-sized plastic packaging bag according to claim 2, wherein: the bearing plate (7) is arranged on the front end of the bearing plate mounting seat (6) through two L-shaped clamping pieces (11).
4. The heat-sealing device for the mouth of the large-size plastic packaging bag according to claim 1 or 3, wherein: the outer sides of the two ends of the sealing knife mounting seat (1) and the bearing plate mounting seat (6) are respectively provided with a sliding rail (4), and the two ends of the sealing knife mounting seat (1) and the bearing plate mounting seat (6) are respectively installed on the sliding rails (4) in a sliding mode through sliding blocks (3).
5. The heat-sealing device for the mouths of large-size plastic packaging bags according to claim 4, characterized in that: seal sword mount pad (1) and accept board mount pad (6) and slide through sealing cylinder (5) and accepting cylinder (9) drive respectively, seal the flexible end of cylinder (5) and be connected with seal sword mount pad (1) through first connecting block (8), accept the flexible end of cylinder (9) and be connected with accepting board mount pad (6) through second connecting block (10).
6. The apparatus for heat-sealing the mouth of a large-sized plastic packaging bag according to claim 5, wherein: first connecting block (8) and second connecting block (10) all are "U" type, and first connecting block (8) draw-in groove sets up on heat conduction material shell (12) and through bolt locking, and second connecting block (10) draw-in groove sets up on accepting board mount pad (6) and through bolt locking, seals sword mount pad (1), seals sword (2) and heat conduction material shell (12) and connects the locking through vertically arranged connecting bolt (15).
7. The heat-sealing device for the mouths of large-size plastic packaging bags according to claim 1 or 6, characterized in that: the bearing plate (7) is made of asbestos material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465411.8A CN113247380B (en) | 2021-04-28 | 2021-04-28 | Method and device for heat sealing of bag opening of large-size plastic packaging bag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465411.8A CN113247380B (en) | 2021-04-28 | 2021-04-28 | Method and device for heat sealing of bag opening of large-size plastic packaging bag |
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| Publication Number | Publication Date |
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| CN113247380A CN113247380A (en) | 2021-08-13 |
| CN113247380B true CN113247380B (en) | 2022-07-12 |
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| CN202110465411.8A Active CN113247380B (en) | 2021-04-28 | 2021-04-28 | Method and device for heat sealing of bag opening of large-size plastic packaging bag |
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| WO2000026010A1 (en) * | 1998-10-16 | 2000-05-11 | Roll-O-Matic A/S | A welding string for forming transverse welding seams in a sheet of film |
| EP3432280A1 (en) * | 2017-07-19 | 2019-01-23 | Masterwork Automodules Technology Corp., Ltd. | Paper-sheet storage device |
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| EP3718749B1 (en) * | 2017-11-30 | 2023-08-30 | Nagano Automation Co., Ltd. | Melt-bonding device |
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| AU2020367375A1 (en) * | 2019-10-14 | 2022-03-24 | Cryovac, Llc | Packaging apparatus and process |
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2021
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|---|---|---|---|---|
| DE3828504A1 (en) * | 1988-08-23 | 1990-03-01 | Reker Maschinenfabrik Und Bagg | Process and apparatus for drawing over a stack a cover comprising a sheeting of plastic |
| JPH08108479A (en) * | 1994-08-19 | 1996-04-30 | Sekisui Chem Co Ltd | Butt welding device of thermoplastic resin tubing |
| WO2000026010A1 (en) * | 1998-10-16 | 2000-05-11 | Roll-O-Matic A/S | A welding string for forming transverse welding seams in a sheet of film |
| EP3432280A1 (en) * | 2017-07-19 | 2019-01-23 | Masterwork Automodules Technology Corp., Ltd. | Paper-sheet storage device |
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